Annealing device



J. ADERER.

ANNEALING DEVICE. APPLICATION FILED JULYZ. 1921.

ELALM I Patented 001s. 10,1922,

w a" y f, g

, To all whom it may concern: 1

Be ltknownthat I, JULIUs Amman, a citlzen of the United States, and resident of the Patented Uct. lid, I922.

ems ennn nnjon new roan, n. Y.

nnemarie DEVICE.

Application as was,

borough of Manhattan, city, county, and

State of New York, haveiinivented certain new and useful Improvements inAnnealing Devices, ofwhich the following is a-specification. i .i a i My invention relates to annealingdevices and has for itsobjectto provide a novel and simple device particularly adapted foriuset in dentistry for thoroughly and quickly anneahng, tempering and hardenmg orthodontia wire and appliances in a uniform .manner and without dangerof melting the wlre or appliance. Other more specific objects of my invention will appear from the description hereinafter and the features of novelty will be pointed out in the appended claims.

In the accompanying drawings, which illustrate an example of my invention without defining its limits, Figure 1 is a plan view of the annealing device and Fig. 2 is a sectional view on the line 2-2 of Fig. 1.

Heretofore in annealing, tempering and hardening orthodontia wire and appliances it has been customary to bring the wire or appliance into direct physical contact with a Bunsen flame by passing it therethrough or to place the said wire or appliance in an iron or copper pan which is held over the Bunsen flame; electric furnaces have also been utilized for the purpose in question. All of these methods are objectionable for one or many reasons; the first because it is practically impossible to gauge the per1od of contact of the wire or appliance with the Bunsen flameso as to secure an even,uni.- form. annealing, tempering or hardening of all. parts theredf; with. the second method it is required to first bring the pan to a red hot condition before the article therein reaches that conditiom'which obviously is a laborious and time consuming proceeding; the third method mentioned is objectionable because of the complexity of the electric fur-- naces and the resultant prohibitive cost, not

only of installation, but also of operation thereof. The present invention overcomes all of these objections and disadvantages by providin an inexpensive yet very effective device w ereby the operation of annealing, tempering and hardening may be successfully P f m with unife y th ghi 1921.- Serial in. essence.

out ina minimumbf time and with com paratively little effort. i

The'device, as I SllOWIl Hl the drawings,

comprisesa support which may be of' any suitable construction and is illustrated in the form ofa metal ring5 preferably pro- VlCl6d=W1th a suitable handle 6 for manipu lating the same. The device further in ,cludes a wire screen? which is supportedin said ring 5: in any suitable manner as; for in- 1 stance, bynestlng upon an lnwardly extend ing annular flange 8 with which said *ring is, :in suohwcasey provided, the: arrangement preferably being such. that said screen may be readily removed from and replaced in the ring whenever desired. The screen 7 may be constructed of any suitable metal which does not readily absorb heat and is prefer-. ably made of Monel metal, and with a mesh which is close enough to normally stop the flame of a Bunsen burner from passing through the screen without materially obstructing the passage of the heat there-H through; for instance, eighty meshes to the I inch has been found satisfactory. The screen 7 with the ring 5, comprises a container in which the articles to be annealed, tempered and hardened. are placed, said screen representing the foraminated bottom of the container. 1

In utilizing the device orthodontia wire, or appliances. such as arch wire, linger springs, e tc., are simply laid upon the screen 7, after which. the device is held above the flame of a Bunsen burner. The screen prevents said flame from contacting with the article in question and melting the same, i

and at the same time permits sufficient heat to reach said article so that only a few seconds exposure to the flame of the Bunsen burner are required to thoroughly anneal the orthodontia wire or appliance being treated. The screen itself, on which the wire or appliance rests, absorbs but very little heat, and unlike an ordinary annealing pan.,-does not itself need to be brought to a red hot stage before the article to be annealed, tempered and hardened reaches that stage. In other words, said article is heated to the required degree in a minimum of time and with comparatively no effort, so that the annealing may be carried out on a comparatively large scale and at a relatively small cost. The invention provides a successful device for thoroughly and quickly heating and tempering platinunrgold wire and finished orthodontia appliances, the screen 7 serving to evenly distribute the heat so that the treatment of the article is uniform and positive throughout its entirety, this result being obtained automatically and without the necessity for any skillful manipulation of the device on the part of the operator.

Various changes in the specific form shown and described may be made Within the scope of the claims Without departing from the spirit of my invention.

I claim:

1. A device for annealing, tempering and hardening orthodontia. Wire and appliances comprising a container for exposing the article to be treated to a Bunseirflame, said container having a foraminated bottom of metal of relatively low heat absorbing propertiesand whereby the flame is prevented from contacting with said article While the passage of the heat from said flame is substantially unobstructed.

2. A device ,for annealing, tempering and hardening orthmlontia wire and appliances comprising a support, a handle therefor and, a Wire screen of relatively low heat absorbing properties carried by said support For exposing the article to be treated to a Bunsen flame, the mesh of said screen being suiliciently close to normally prevent the passage therethrough of said flame without mate rially obstructing the passage oi the heat from said flame.

3. A device for annealing, tempering and hardening orthodontia Wire and appliances comprising a supporting ring having an inwardly extending annular flange, a handle connected with said ring and a wire sereen of Monel metal removably resting upon said flan 'e and of a mesh suiiiciently close to normal? prevent the passage theretlirough of said flame Without materially obstructing the passage of the heat from said flame.

In testimony whereof l have hereunto set I my hand.

JULIUS ADER [Cl-t. 

